After Polish architecture firm KWK Promes won a competition in 2016 to design a luxury single-family home in suburban Vilnius, Lithuania, a law slashed the allowable building footprint in half. While the client saw this as a reason to move the project to another site, KWK Promes saw the problem from the unique view of architects – where constraints aren’t obstacles but essential drivers of innovation. Thus, the striking triangular form that would be known as the Trim House was born.